Dynamic modelling of planetary gearboxes using vibrational analysis

Research output: Contribution to conferencePaper

Abstract

. Planetary gearboxes failure has been a major problem in
systems reliability, hence condition monitoring of this component is essential.
In order to identify faults, a dynamic model of the gearbox is
presented taking into account backlash and tooth cracks. Newtonian
equations of motion developed for a planetary gear is solved and modal
analysis for solving the lumped parametric differential equations of modelled
single stage planetary gearbox is adopted to observe the vibrational
responses and to compare with existing literature. This work focuses primarily
on the effects of stiffness and damping. The eigenvalue problem
has been solved to measure the natural frequencies and amplitude of the
system. Parametric studies using stiffness and damping results indicate
significant changes in vibrational signals when there is a crack present
on tooth. Simulation results also show the relation between increment in
backlash and high frequency responses in the resultant vibration.
Original languageEnglish
Publication statusPublished - 2018

Fingerprint

Damping
Stiffness
Cracks
Condition monitoring
Frequency response
Gears
Dynamic models
Natural frequencies
Differential equations

Keywords

  • Gearboxes
  • Diagnostic
  • Helicopter
  • Prognostics
  • dynamic modeling
  • MATLAB
  • ABAQUS
  • ANSYS
  • LabVIEW

Cite this

@conference{690bda4d7b414f9198fdf3091c0a6e4b,
title = "Dynamic modelling of planetary gearboxes using vibrational analysis",
abstract = ". Planetary gearboxes failure has been a major problem insystems reliability, hence condition monitoring of this component is essential.In order to identify faults, a dynamic model of the gearbox ispresented taking into account backlash and tooth cracks. Newtonianequations of motion developed for a planetary gear is solved and modalanalysis for solving the lumped parametric differential equations of modelledsingle stage planetary gearbox is adopted to observe the vibrationalresponses and to compare with existing literature. This work focuses primarilyon the effects of stiffness and damping. The eigenvalue problemhas been solved to measure the natural frequencies and amplitude of thesystem. Parametric studies using stiffness and damping results indicatesignificant changes in vibrational signals when there is a crack presenton tooth. Simulation results also show the relation between increment inbacklash and high frequency responses in the resultant vibration.",
keywords = "Gearboxes, Diagnostic, Helicopter, Prognostics, dynamic modeling, MATLAB, ABAQUS, ANSYS, LabVIEW",
author = "Imthiyas Manarikkal and Faris Elasha and Laila, {Dina Shona} and David Mba",
year = "2018",
language = "English",

}

TY - CONF

T1 - Dynamic modelling of planetary gearboxes using vibrational analysis

AU - Manarikkal, Imthiyas

AU - Elasha, Faris

AU - Laila, Dina Shona

AU - Mba, David

PY - 2018

Y1 - 2018

N2 - . Planetary gearboxes failure has been a major problem insystems reliability, hence condition monitoring of this component is essential.In order to identify faults, a dynamic model of the gearbox ispresented taking into account backlash and tooth cracks. Newtonianequations of motion developed for a planetary gear is solved and modalanalysis for solving the lumped parametric differential equations of modelledsingle stage planetary gearbox is adopted to observe the vibrationalresponses and to compare with existing literature. This work focuses primarilyon the effects of stiffness and damping. The eigenvalue problemhas been solved to measure the natural frequencies and amplitude of thesystem. Parametric studies using stiffness and damping results indicatesignificant changes in vibrational signals when there is a crack presenton tooth. Simulation results also show the relation between increment inbacklash and high frequency responses in the resultant vibration.

AB - . Planetary gearboxes failure has been a major problem insystems reliability, hence condition monitoring of this component is essential.In order to identify faults, a dynamic model of the gearbox ispresented taking into account backlash and tooth cracks. Newtonianequations of motion developed for a planetary gear is solved and modalanalysis for solving the lumped parametric differential equations of modelledsingle stage planetary gearbox is adopted to observe the vibrationalresponses and to compare with existing literature. This work focuses primarilyon the effects of stiffness and damping. The eigenvalue problemhas been solved to measure the natural frequencies and amplitude of thesystem. Parametric studies using stiffness and damping results indicatesignificant changes in vibrational signals when there is a crack presenton tooth. Simulation results also show the relation between increment inbacklash and high frequency responses in the resultant vibration.

KW - Gearboxes

KW - Diagnostic

KW - Helicopter

KW - Prognostics

KW - dynamic modeling

KW - MATLAB

KW - ABAQUS

KW - ANSYS

KW - LabVIEW

M3 - Paper

ER -